Question

question 8 how does the equilibrium constant change if the reaction is reversed? it remains the same it is squared it is halved it becomes the reciprocal question 9 what effect does doubling the coefficients in a balanced chemical equation have on the equilibrium constant k? k remains unchanged k is squared k is halved k becomes the reciprocal

Explanation:

Question 8

The equilibrium constant $K$ for a forward reaction and its reverse reaction are reciprocals of each other. Mathematically, if $K_{f}$ is the equilibrium - constant for the forward reaction and $K_{r}$ is the equilibrium - constant for the reverse reaction, then $K_{f}=\frac{1}{K_{r}}$.

The equilibrium constant $K$ is related to the stoichiometric coefficients of the balanced chemical equation. If the coefficients in a balanced chemical equation are doubled, the new equilibrium constant $K'$ is the square of the original equilibrium constant $K$. That is, if the original reaction has equilibrium constant $K$ and the new reaction with doubled coefficients has equilibrium constant $K'$, then $K' = K^{2}$.

Answer:

It becomes the reciprocal

Question 9